The minimum hardware and software requirements are:
Pentium (Pentium II and above is recommended)
Windows 98, Windows ME, Windows 2000 or WindowsXP
128 MB RAM
AVR Studio 4.12 with Service Pack 3
USB port, self-powered (500mA required)
Internet Connection for Software download
Note: Windows 95 and Windows NT does not support USB, hence cannot be used with AVR Dragon